| Date | Acquired | Amount |
|---|---|---|
| Sep 19, 2016 |
|
$ 2,600,000,000 |
| May 29, 2015 |
|
Undisclosed amount |
| Nov 04, 2013 |
|
Undisclosed amount |
| Sep 12, 2012 |
|
£ 106,000,000 |
| Sep 05, 2012 |
|
£ 227,000,000 |
| Oct 01, 2010 |
|
Undisclosed amount |
| Mar 31, 2003 |
|
$ 229,000,000 |
